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International Journal of Optics - Volume 2017 2017, Article ID 9586067, 16 pages - https:-doi.org-10.1155-2017-9586067

Review ArticleDepartment of Imaging Physics, Delft University of Technology, Lorentzweg 1, 2628 CJ Delft, Netherlands

Correspondence should be addressed to J. Kalkman

Received 28 September 2016; Revised 1 December 2016; Accepted 19 January 2017; Published 22 March 2017

Academic Editor: Rainer Leitgeb

Copyright © 2017 J. Kalkman. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

Abstract

In this work the theory of the optical coherence tomography OCT signal after sampling, in dispersive media, with noise, and for a turbid medium is presented. The analytical theory is demonstrated with a one-dimensional numerical OCT model for single reflectors, dispersive media, and turbid media. For dispersive media the deterioration of the OCT axial resolution is quantified analytically and numerically. The OCT signal to noise ratio SNR is analyzed in the Fourier-domain and simulated with the numerical model. For an SNR based on the OCT intensity the conventional shot noise limited SNR is derived whereas for an SNR based on the OCT amplitude a 6.7 dB higher SNR is demonstrated. The OCT phase stability is derived in the Fourier-domain as 2SNR

and is validated using the numerical OCT model. The OCT single scattering model is simulated with the one-dimensional numerical model and applied to the simulation of an OCT image of a two-layered sample.





Autor: J. Kalkman

Fuente: https://www.hindawi.com/



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